“使用Perl、GD和plot - latlong创建数据的地理标绘”这篇文章详细描述了worldCompositeMap . pl程序。
Pl program is detailed in "Create geographical plots of your data using Perl, GD, and plot-latlong."
使用这些技术、地理编码模块和地图工具，您有无数种选择可以创建按地区色彩渐变和按城市标绘的地图。
With these techniques and the geocoding modules and mapping tools, you have myriad options for creating region shaded and city-plotted maps.
现有的地图工具API可以让您标绘世界各地的地理点，但是您可能需要一种轻松的方法根据特定数据对州、国家或地区使用色彩渐变效果。
Existing mapping tools APIs may allow you to plot points worldwide, but you might want an easy way to shade in a state, country, or region based on certain data.
除了简单地标绘地理点外，为美国地图中各个州显示色彩渐变效果也是一种提供信息的有效方法。
Shading in the various states on a map of the United states is an effective means of providing another channel of information beyond that available by simply plotting points.
本论文对三维地理信息系统及在其基础上建立的三维态势标绘系统的关键技术进行了研究。
In this dissertation, key techniques for three-dimensional geographic information system and three-dimensional plotting system are studied.
本论文对三维地理信息系统及在其基础上建立的三维态势标绘系统的关键技术进行了研究。
In this dissertation, key techniques for three-dimensional geographic information system and three-dimensional plotting system are studied.
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